Interview Questions

Payroll systems accurately maintain data related to payroll processing. Familiarity with formal payroll systems and computerized software ensure the candidate has experience with current payroll technology.

• An Interpreter is a program that reads in as input a source program, along with data for the program, and translates the source program step by step.

The Java interpreter decodes each lines bytecode and runs a series of machine instructions for that bytecode. The JVM takes the byte code and generates machine code. The byte code is compiled to machine code, and the machine code is executed.

Overridden methods must have the same name, argument list, and return type (i.e., they must have the exact signature of the method we are going to override, including return type.)

The overriding method cannot be less visible than the method it overrides( i.e., a public method cannot be override to private).

The overriding method may not throw any exceptions that may not be thrown by the overridden method

Following are the 3 core directives of AngularJS.

1. ng-app : This directive defines and links an AngularJS application to HTML.


2. ng-model : This directive binds the values of AngularJS application data to HTML input controls.


3. ng-bind : This directive binds the AngularJS Application data to HTML tags.

Hub is device to connect two devices, switch is a network bridge which processes and routes data approirately over network layer of OSI Reference model

The Asynchronous Transfer Mode or ATM is a connection technology that works by transmitting data into organized 53 bytes (small) packages through a physical environment with a high efficiency. Packing data into small cells reduces transportation delay so the speeds reached by this technology are very high; it can reach even 10 Gb per second.

Use SELECT DISTINCT ..... in DB2 query

The DISTINCT keyword can be used to return only distinct (different) values.

Syntax:

     SELECT DISTINCT column1,column2

      FROM table_name;